Multiple Choice QuestionsClass Crustacea has following features :
Cephalothorax, book lungs, chitinous exoskeleton
Head and thorax, biramous appendages, book lungs
Head and thorax, book lungs, chitinous exoskeleton
Cephalothorax, biramous appendages, gills
In respiration from 180g of glucose which of the following is formed?
264gm CO2 + 190gm H2O + 391 Kcal
264gm CO2 + 108gm H2O + 686 Kcal
390gm CO2+ 108gm H2O + 686 Kcal
390gm CO2 + 264gm H2O + 391 Kcal
B.
264gm CO2 + 108gm H2O + 686 Kcal
In respiration from 180 gm of glucose, 264 gm CO2 + 108 gm H2O + 686 Kcal energy is formed.
C6H12O6 + 6O2 6CO2 +6H2O + 686 Kcal.
Atomic weight of C = 12; H = 1 and O = 16
C6H12O6 = (12 x 6 + 12 x 1 + 16 x 6) = 180 gm
6CO2 = 6 (12 + 16 x 2) = 264 gm
6H2O = 6 (2 x 1 +16) = 108 gm
Therefore, 1 molecular or 180 gm of glucose, through respiration, 264 gm CO2, 108 gm H2O and 686 Kcal energy are formed.
In plants, water moves from
less negative to more negative potentia
more negative to less negative potential
same potentials
none of the above
Stomata opens
in day time - for gaseous exchange
in day time- no gaseous exchange
in night time only - for gaseous exchange
in night time only - no gaseous exchange
Identify the correct statement
In amniotes last nerve is spinal accessory
In non- amniotes last nerve is vagus.
Optic is shortest nerve
Olfactory nerves has mixed fibres.
Which of the following is wrongly matched?
Haemoglobin in mammals - RBC
Haemozoin - Plasmodium cytoplasm
Haemocyanin- prawn
Haemoglobin dissolved in blood - Pheretima
Which of the following is non-pathogenic bacteria of colon?
Escherichia coli
Balantidium coli
Entamoeba coli
Enterobius vermicularis
Some Gram -ve bacteria have peptidoglycan and an extra layer of
lipo-polysaccharide
techoic acid
cellulose
both (b) and (c).
Which of the following is correct about nematocyst?
It can be re-used.
It is excretory organ in arthropods.
It is ejected on contact and pierce the prey.
None of these.
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